Eaton PowerXL DM1 Series - Page 196

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Chapter 7- Multi-purpose application
POWERXL DM1 SERIES VARIABLE FREQUENCY DRIVES MN040049EN—September 2021 www.eaton.com
Table 60. Drive control (Cont.).
P4.2.6
ab
Flux brake
ID 266
Minimum value:
N.A.
Maximum value:
N.A.
Default value:
0
Options:
0 = Flux braking OFF; or
1 = Flux braking ON.
Description:
While stopping, the output frequency is reduced and the flux in the motor is increased, which in turn increases the motor’s capability to
brake. Unlike DC braking, the motor speed remains controlled during braking. The flux braking can be set ON or OFF.
ote: N Flux braking converts the energy into heat in the motor and should be used carefully to avoid motor
damage.
P4.2.7
ab
Flux brake current
ID 265
Minimum value:
MotorNomCurr*1/10
Maximum value:
CurrLimit A
Default value:
MotorNomCurr*1/2 A
Description:
Defines the flux braking current value output when flux brake is enabled.
P4.3 - Skip frequency.
P4.3.1
b
Skip range ramp factor
ID 264
Minimum value:
0.1
Maximum value:
10.0
Default value:
1.0
Description:
Defines the acceleration/deceleration time when the output frequency is between the selected prohibit frequency range limits. The
ramping speed (selected acceleration/deceleration time 1 or 2) is multiplied with this factor: e.g., value 0.1 makes the acceleration time
10 times shorter than outside the prohibit frequency range limits.
Ramp speed scaling between skip frequencies.
P4.3.2
b
Skip F1 low limit
ID 256
Minimum value:
0.00 Hz
Maximum value:
SkipRange1HighLimit Hz
Default value:
0.00 Hz
Description:
Defines the acceleration/deceleration time when the output frequency is between the selected prohibit frequency range limits. The
ramping speed (selected acceleration/deceleration time 1 or 2) is multiplied with this factor: e.g., value 0.1 makes the acceleration time
10 times shorter than outside the prohibit frequency range limits.
P4.3.3
b
Skip F1 high limit
ID 257
Minimum value:
SkipRange1LowLimit Hz
Maximum value:
400.00 Hz
Default value:
0.00 Hz
Description:
Defines the acceleration/deceleration time when the output frequency is between the selected prohibit frequency range limits. The
ramping speed (selected acceleration/deceleration time 1 or 2) is multiplied with this factor: e.g., value 0.1 makes the acceleration time
10 times shorter than outside the prohibit frequency range limits.
P4.3.4
b
Skip F2 low limit
ID 258
Minimum value:
0.00 HZ
Maximum value:
SkipRange2HighLimit Hz
Default value:
0.00 Hz
Description:
Defines the acceleration/deceleration time when the output frequency is between the selected prohibit frequency range limits. The
ramping speed (selected acceleration/deceleration time 1 or 2) is multiplied with this factor: e.g., value 0.1 makes the acceleration time
10 times shorter than outside the prohibit frequency range limits.
P4.3.5
b
Skip F2 high limit
ID 259
Minimum value:
SkipRange2LowLimit HZ
Maximum value:
400.00 Hz
Default value:
0.00 Hz
Description:
Defines the acceleration/deceleration time when the output frequency is between the selected prohibit frequency range limits. The
ramping speed (selected acceleration/deceleration time 1 or 2) is multiplied with this factor: e.g., value 0.1 makes the acceleration time
10 times shorter than outside the prohibit frequency range limits.
fout (Hz)
Time (s)
Skip Range Ramp Factor = 1.2
Skip Range Ramp Factor = 0.2
Skip Frequuency High Limit
(Skip F1 High Limit, Skip F2
High Limit, Skip F3 High Limit)
Skip Frequency Low limit
(Skip F1 Low Limit, Skip F2
Low Limit, Skip F3 Low Limit)